Mayfly Nymph Callibaetis

Callibaetis mayflies are a staple for stillwater anglers across the Americas. Found in lakes, ponds, and slow streams—especially alkaline waters where hatches can resemble drifting smoke—these insects draw steady attention from trout, bass, and panfish through every life stage. Nymphs live among the weeds, darting toward the surface in short, quick bursts before tiring and sinking back down. Patterns like the Extended Callibaetis, with its upturned abdomen, mimic this ascent perfectly. Fish them with a slow, pausing retrieve to match the nymph’s natural rhythm.